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-rw-r--r--tools/dtoc/fdt_util.py14
1 files changed, 14 insertions, 0 deletions
diff --git a/tools/dtoc/fdt_util.py b/tools/dtoc/fdt_util.py
index b9dfae8d0e..bec6ee947a 100644
--- a/tools/dtoc/fdt_util.py
+++ b/tools/dtoc/fdt_util.py
@@ -29,6 +29,20 @@ def fdt32_to_cpu(val):
val = val.encode('raw_unicode_escape')
return struct.unpack('>I', val)[0]
+def fdt_cells_to_cpu(val, cells):
+ """Convert one or two cells to a long integer
+
+ Args:
+ Value to convert (array of one or more 4-character strings)
+
+ Return:
+ A native-endian long value
+ """
+ out = long(fdt32_to_cpu(val[0]))
+ if cells == 2:
+ out = out << 32 | fdt32_to_cpu(val[1])
+ return out
+
def EnsureCompiled(fname):
"""Compile an fdt .dts source file into a .dtb binary blob if needed.